Fountain-pen filler



Feb. 24, 1931. P. c. ZIESCHANG 1,793,891

FOUNTAIN PEN FILLER Filed July 14, 1930 I 11 fi ly- /2 mun!!! Paul C. Zieschung' Q kg.

Patented Feb. 24, 1931 PAUL G. ZIESCHANG,

PATENT @FFICE or connivrnns, OHIO FOUNTAIN-PEN FILLER Application filed 31115714,

This invention relates to improvements in fountain pens and has for its primary obj cct the provision of an improved mechanism, constituting a permanent part of the pen for 1 efiecting the complete filling of the ink holding reservoir of the pen. In the ordinary fountain pen there is. provided a collapsible sack, and the barrel of the pen is equipped with sack collapsing means. It is a matter of common experience that this customary construction in fountain pens does not permit of complete filling of the ink holding sack with the writing fluid and it is necessary at relatively frequent intervals to refill the pen with the writing fluid. Another objection to the employment of a collapsible sack is that it becomes broken after a very short period of of. l

QQ It is an outstanding object of the present invention to eliminate the ink holding sack from the barrel of the pen and to provide an improved filling mechanism consisting of a plunger which is operable from theupper :5 portion of the pen and which operates to permit of the free flow of inkinto the elongated ink chamber of the barrel permitting said chamber to be filledto its maximum capacity with a writing fluid.

It is another object of the invention to provide afountain pen which is not apt to leak while being carried about and also one which is of positive and rugged,yet comparatively inexpensive construction wherein the pun1ping mechanism does not add appreciably to the size of thepen or render thesame bulky to carry or awkward to manipulate.

A further object of the invention resides in the provision of a fountain pen filling 1 to mechanism which includes a pump plunger havingattached thereto a flexible gear rack with which is associated suitable gearing provided in the upper end of the pen and which gearing is manipulated by a rotatable cap 45 forming the top of the pen to cause a reciprocatory movement of the plunger within the barrel.

With these and other objects in View, which will appear as the description proceeds, the

an invention consists in the novel features of use necessitating frequent replacement there- 1930. Serial No. 467,744.

construction, combination of elements and arrangements of parts hereinafter to be more fully described and pointed out in the api pended claims.

In the accompanying drawings:

Figure 1 is a vertical sectional view taken througha fountain pen comprising the pres ent invention wherein the upper portion thereof is partly in elevation,

Figure 2 is a transverse vertical sectional View taken on the line 22 of Figure 1,

1 Figure 3 is a similar view of the pen taken at right angles to that disclosed in Figure 2,

Figure i is a horizontal sectional View taken on theline 4-4 of Figure 2,

Figure 5 is a similar view taken on the line 55 of Figure 2, i Figure 6 is a horizontal sectional View taken on the line 6-6 of Figure 2,

Figure 7 is a side elevation of the gear carrying member positioned at the upper end of the pen. Referring more particularly to the drawings, the numeral 1 designates the barrel of a fountain pen constructed in accordance '1 with the present invention. The barrel may be formed from anyof the customary materials employed in the manufacture of pens of this character and, also, may be ofany desired shape, form or appearance, since it is one of the features of the present invention that while a new type of filling mechanism has been provided, yet the standard exterior construction of the pen is not aifected thereby. The lower end of the barrel 1 is provided with the usual pen point 2 and the ink guiding feeder 3, the latter being provided with the usual channel or passage 4 by which the writing fluid may be conducted from the ink receiving chamber 5 within the barrel in regulated quantities to the pen point.

The upper end of the barrel 1 is provided with a wall 6 which may be in the form of a plug adhesively united along its side edges to the interior wall of the barrel. Arranged above the plug or wall 6 is a member 7 which i is secured to the wall 6 by means of screws or other fastening elementsS to hold the memher 7 in rigid relationship with the wall 6 and the barrel 1 of the pen.

Mounted within a slot formed in the upper end of the member 7 and to one side of the axial center of the pen is a gear 9 which is mounted for rotation around a horizontally arranged pivot member 10 screwed into the body of the member 7. Arranged to intermeshwith the gear 9 is a similar gear 11 horizontally arranged and fixed for rotation with a cap member 12 positioned on the up per end of the'pen. The cap 12 is formed with a chamber 13 in which thegear mechanism and the member 7 is located and around which the cap member 12 is rotated. To hold the cap member 12in place upon the upper end of the pen there is providedan annular groove 14 in the member 7 and in which groove is received the inner ends of a pair of screws 1 1 carried by the side walls of the cap 12. It will be seen that by means of this connection'between the cap and the member 7 the former may be rotated yet held in place in connection with the pen and that the rotation of the cap and the gear 11 will transmit a rotary motion to the gear 9.

Arranged to intermesh with the gear 9 is a flexible gear rack 15 which has one end thereof attached to a plunger member 16 and the other free end thereof received Within a longitudinally arranged elongatedpocket or Well 17 provided in the body of the'pen to one'side of the ink receiving chamberh; The gear rack 15 which is in the formof a steel ribbon is guided within'the arcuate slot 18 formed in the member 7 and'is so arranged that the teeth 19 of the gear rack will always intermesh with the gear or pinion 9 to cause the rack 15 to slide longitudinally of the slot. The slot 18 has one of its ends registering with the well 17 and the other with the opening 20 formed in the wall 6.

The gear rack or ribbon 15 may be secured in any suitable na'nner, as by soldering or brazing the same, to the upper metallic plate member 21 of the plunger 16. .Clainped between the plate member 21 and the washer 22 at the lower end of theplunger is a plurality of disks 23 formingthe plunger 16 and which disks may be made of soft leather, rubber or gears 9 and 11 causing the ribbon or gear 15' and 1ts connected plunger 16 to move down-' wardly toward the lower end of the barrel. The pen point is thensubmerged in a body of ink, and the cap 12 is rotated in the reverse or anti-clockwise direction effecting an upward movement of the plunger and drawing the ink upwardly into the reservoir 5, filling the latter completely. The plunger 16 when in an uppermost position will close the customar rubber or collapsible sack inside of V L the barrel has been dispensed with which deteriorates and isa source of nuisance and expense in the present type of fountain pens. The pen, dueto the seal between the plunger and the upper end wall of the barrel is completely closed andtherefore is not subject to leakage. The operation of fillingzand emptying is simple and can be carried out readily and quickly, the barrel being'flushed out with water in the same-manner forcleaningpurposes. There-is 'only one part subject to any appreciable wear namely: the washers 23 of the plunger member 16 and these may be readily replaced at small 'cost.

To gain access to the plunger for thereplacecent of the washers 23 the lower threaded end 26 which carries thepenpoint and the feeder 3 may be unscrewed and the plunger with-its attached ribbon 15 removed-from the barrel;

It will be obvious that many changes in.

the construction, combination and arr'angement of parts may be'made without departing'from the spirit of the invention,and I do not desire to limit the invention tothe details shown in the drawings, except as particularly pointedout in the claims.

lVhat is claimed is: I

1. In a fountain pen, a barrel including an ink reservoir, a plunger mounted for sliding movement within said reservoir, a rotatable cap member carried'rby' the'upper end of said barrel, a gear mechanism within said cap member and mounted for rotation therewith, and a gear rack connecting said'plunger and meshing with said gear mechanism whereby upon the rotation'of said cap member longitudinal sliding movement will be imparted to'said plunger.

2. In a fountain pen, a barrel including an ink reservoir, a plunger mounted within said reservoir, a flexible gear rack having one end connectingsaid plunger and the other end received within an elongated well provided in said barrel to one side of said reservoir, a rotatable cap member carried by the upper end of said barrel, and motion transmitting means between said rack and said cap member for effecting longitudinal sliding movement of said plunger within said reservoir.

3. In a fountain pen, a barrel including an ink reservoir, a plunger mounted for longitudinal sliding movement within said reservoir, a flexible gear rack attached at one end to said plunger and the other end received within a well formed longitudinally of the barrel and to one side of said reservoir, a member positioned at the upper end of said barrel having an arcuate guideway for said rack, a gear mounted for rotation in said member and meshing with said gear rack, a rotatable cap carried by the upper end of said barrel, and gear means fixed with said cap and meshing with said gear member.

4; In a fountain pen, a barrel including an internal ink reservoir and an elongated well, a plunger element slidably received Within said reservoir, a flexible gear rack connected at one end to said plunger ele ment and the other end received within said well, a gear meshing with said gear rack, and means formed exterior of said pen for rotating said gear.

5. In a fountain pen, a barrel including an ink reservoir and a closure at one end of said barrel having an opening therein, there being an elongated well formed in said barj way connecting said well and reservoir by 30 way of the opening formed in said closure, a ribbon-like gear trained through said passage and having one of its ends received within said reservoir, a plunger element attached to the latter end ofsaid ribbon and slidably positionedwithin said reservoir, a rotatable 7 cap member carried by the upper end of said barrel, and

gear means between said cap and said ribbon.

6. In a fountain pen, a barrel including an ink reservoir, a reciprocatory plunger element positioned within said reservoir, a flexible member having one end connecting said plunger element and the other end received within an elongated well provided in the barrel to one side of said reservoir, a rotatable cap member connected by the upper end of said barrel, and means formed with said a cap and flexible member for eflecting a longitudinal sliding movement of said plunger element upon the rotation of said cap member.

7. In a fountain pen, a barrel including an ink reservoir and an elongated well, a member positioned at one end of said barrel and provided with an arcuate guideway connecting said reservoir and said well, a ribbonlike gear element positioned Within said guideway and having one end thereof received within said well and the other end Within said reservoir, a piston slidably received within said reservoir and connecting said ribbon, a gear carried by said member and meshing with said ribbon-like gear eleinent, a rotatable cap mounted for rotation at the upper end of said barrel, a gear ar- PAUL C. ZIESCHANG. 

